I own a 1988 300gd g wagon and love it it's a great car and I use it everyday but I'm now looking for the best engine to replace my slow 300gd with I want somthing that won't be crazy hard to fit or somthing that's notgoing to only make a small difference. I was thinking of a ml270 engine but I can't find of anyone has put one of these in befor and how hard it will be. Any advice or info would be greatly appreciated thanks.